Improvement in cooling and pueifying animal ohaeooal



n. H. TURNER'.

Purifying Animal Charcoal.

No. 68,9i5.

Patented Sept-W1857- i fmgs ses.'

.PETERS, PHOTO LITHDGRAPHE WASHINGTON, D. (L

i @uiten tstrs ste-nt' @titre D AN 1 .E L vn. fr U RN En, .or N EW' Y o RK, N.` Letters Patent N 68,915, dated rSeIJtmnbcr 17, 1867.

dige Stlgrbirle muret in in tina tsttrs @sind mit making part if tigre sume.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, DANIEL H. TURNER, of the city, county, and State of New York, have invented anew and useful Improvement in Cooling and Purifying Animal Charcoal, of which the following is a full, clear, and exact description, reference being had to the accompanying. drawing, forming part of this specification, and in whichi ,i y 1- i et Figures 1 and 2 represent sectional elevations, at right angles to each other, of an appara-tus for cooling and purifying animal charcoal according to my improvement.

My improvement in cooling and purifying bone-black or animal charcoal it will sullicc here to describe in connection with 'sugar refining, the utility and application of which substance to` such purpose is well -underf stood; but thc improvement is, of course, applicable to cooling and purifying animal Vcharcoal generally, or

irrespective of the purpose for which itis required. o y

The ordinary method of cooling and purifying animal charcoal, as practised, for instance, in sugar rcincries,

is to dump the coal from wagons, as it is brought from the kilns, on to a large or-roomy hugged iloor, and then to arrange it in ridges and furrows, and frequently handle or turn it, to effcctcthe cooling and removal of the noxious gases generated in the process of rfi-burning. This is not only'a slow process, involving no little labor, but takes'up considcrablespace, and creates much dust, to the loss and injury of the coalt These objections my improvement obviates, as; by it the cooling is effected, and gases, dust, and other impurities removed in a comparatively close, compact, and expeditious manner, withagreat savingin labor, and withontactingon thc coal in dense quantities at a time, which'is so apt to produce injurious condensation and action on it, as regards its dccoloring property, of the sundry and different gases generated in the process of rc-burning. My invention, in this connection, consists in a novel process of cooling and purifying thecoal by agitating or giving it a series of successive lifts as it is passed along a. rcticulated cylinder or body, through which a current of cold -or cool airis made to pass g' also, in a combination, for the purposes'pecied, of`a revolving reticulated cylinder or vessel provided with lifting-strips, or otherwise equivalently constructed, upper trunk or iluo for escape of the noxious gases, liner dust, and establishment of the draught, and suitable delivery devices for sepa-rate discharge 1 of the coal and coarser dust, l I, The following will suiticc to explain more minutcly, referring at the saine time to the accompanying drawL "o ing, yhow my invention is or may he carried out: The animal charcoal, after boing rc-burnt, is transferred `in wagons, as drawn from thc kilns, to an'elcvator, from and by which it is passed toa hopper, A, and from thence, P by a tube or wa-y, Il, into or through the one and preferably closed ond of a wirc or perforated cylinder, or i i other-shaped rcticulatcd vessel, B. This vessel is made` torevolve by any suitable means, being hung on or i carried by a horizontal or approximately horizontal shaft, b, resting iu outside bearings ;f and, though preferably of cylindrical form, and provided with internal lifting-strips G, set spiral or straight, may bc of decagonal `or other polygonal shape in its transverse section, and is. off any suitable length, open at its end opposite to that` by which thc charcoal is received into it. Said coal is thus made to pass slowly along the perforated cylinder B, and in such travel has thc particles of which it is composed subjected to a succession of lifts by the strips G, falling back repeatedly as cach strip approaches its uppermost position, and, `whilst thus agitatcdia-nd opened or distributed, is exposed to an ascending current of cold or cooling air from bcloiv,i passing through thc meshesof fthe cylinder, and around it up through a truuk or liuc, C, said current carryingalong with it thc several noxious A gases, and finest dust or other impurities, to any suitable receiver` or outlet with which the trunk C is connected.`

This current may either hc a natural draught, the heat of the coal aiding such, or it may be a blast'produced by a blower below or suction device above. In this way is the coal cooled and puried, thc cold-and'clean coul o passing oif by a chute, D, into barrels, wagons, or other suitable vessels, ready for 'use in the iltcrs of the F refinery, while the coarser and valuable dust, passing out through the meshes of the cylinder, is conveyed by u y lower tray, E, to any suitable receiver.V Not only, will it be seen, is the Vcoal rapidly and ciectuully cooled, which is so tedious or slow and diilicult 'to effect during warm weather under the ordinary process', but all detri- V mental gases and objectionable dust orv dirt removed, with a great saving of space, whichiis of importance in "i reneries located in'cities. I Y' o By this my improved process, in five4 minutes, or thereabouts, from the time the coulis drawn from the kilns may it be made ready for thei'ilteritanks, und at a uniform itemperature,V

What is here claimed, and desired to besecured by Letters Patent, is

1.` The vprocess; substantially as herein described, of cooling and purifying animal charcoal by agituting or giving it a. series of successive or reptcalted lifts as it is passed through or along a eticulted cylinder or vessel through which u current of cold or cooling air is made to ascend, essentially as herein set forth. l

2. The combination, for the purpose or purposes specified; of a revolvingreticuluted cylinder or vessel pro# vided with lifting-strips, orv otherwise equivalently constructed, upper tzju'rikorflue for escape of the noxious gases and liner clust, serving also for establishment of the draught, and suit-able delivery-chutes'or devices for Separate discharge of thecoa'l und coarser dust, substantially as described.

D. H. TURNER.

Witnesses:

J. W. Cocinas, A. LE CLERC. 

